I have a seleco 350+ and I dont know if it has a fault or if its just the way they are,but the symptoms I got are;when a scene changes(usually to a brighter one)the image is fine for a couple of seconds then I get a 'stepping down'in brightness.there are about 4-5 stepping down increments about a second apart,the image is 'dimer'when it has done this and it appears to me that the brightness of the image before it does this is how it should be.as afterwards it appears a bit too low in brightness.its watchable but annoying. Has anyone come across this before? Is it serious? the projector is running perfectly apart from this. Any help much appreciated.